<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			div{
				font-family: "微软雅黑";
				font-size: 16px;
				text-align: center;
				
				width: 200px;
				height:100px;
				line-height: 100px;
				border: 1px solid red;
				
			}
			
			div:hover{
				background-color: green;
			}
			
		</style>
	</head>
	<body>
		
		<div>
			啦啦啦...
		</div>
	</body>
</html>
